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Hybridization by Grafting: A Long-Standing Debate In a recent issue of Nature , Fuentes et al. (2014) reported that entire nuclear genomes could be transferred across the graft junction to generate a species of allopolyploid plant without sexual

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seed formation process, and so on. Owens and Marje (1977), Owens and Molder (1974, 1980), and Owens and Pharis (1967) reported the sexual reproduction process of Thuja plicata and Chamaecyparis nootkatensis in detail; in addition, gibberellin

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and L. ruderale , as well as the mode of their reproduction, to estimate the state of population of these species. Material and Methods Plant material. We used flower buds and flowers, at different developmental stages, collected from one population

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dodecaploid ( Table 1 ). Interestingly, A. donax in Australia was reported to have 2 n = 84 ( Haddadchi et al., 2013 ) further indicating sources of genetic diversity. The nonreduction of chromosomes during meiosis (i.e., during sexual reproduction) is

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decrease as distance increases among taxa as a result of pre-zygotic and post-zygotic barriers to hybridization ( Ladizinsky, 1992 ). There has been very little successful intergeneric sexual hybridization between the Aurantioideae and Toddaliodaea. However

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adequate number of sperm and egg cells can be isolated, allowing for transcriptomics research into fertilization of pepper. This provides entry into a new field of the research into the sexual reproduction of dicotyledonous pepper. Sperm cell isolation from

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were genetically identical to the female parent, whereas others were sexual hybrids. Phylogenetic relationships of the seed parent genotypes (hereafter “parent genotypes”) we used are described in Barkley (2003) and Bayer et al. (2009) . We planted

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sexual reproduction may lead to the demise of this plant, which has low genetic diversity at both the population and species level ( Godt and Hamrick, 1999 ). Georgia plume is a prime candidate for ex situ cultivation, which can be used to generate plants

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the relative contribution of sexual and asexual reproduction to this species’ competitiveness is unknown. The floral reproductive biology of creeping bellflower is well studied because of transient self-incompatibility in which the stigmas of the

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propagation of F. crassicaulis can be done via two methods: sexual and asexual propagation. Sexual reproduction is seed reproduction, which is difficult to fulfill, like other species of Fritillaria , due to the long dormant period, the complex dormancy

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